Hi, So Cal high desert area questioning. What could be the cause of one of three different citrus trees giving fruits that near to completely split open early in ripening? The one "splitter" in an odd orange sort I don't know the name of, but it is smooth skinned with sturdy segments and has a delicious orange-peach flavor (best description I can come up with). The lemon and blood orange trees are now just over 20 years old and produce far more fruits than even giving away can keep up with. The odd orange is the same age, though produces nothing to as many as 23 fruits each year (zero for the beginning four years, then 6 to 23 between other barren years). The current problem is fruits splitting, what may be the cause and what can I do about it?
Thanks for any help I may find here, Jeanine